Aygestin vs Norethindrone: are they the same?
Aygestin is a commercial brand whose active ingredient is exactly Norethindrone. This page explains what that means in practice: where they differ (brand, manufacturer, price, available strengths), why they are clinically equivalent, and when the brand or an authorised generic is the better choice.
Are they the same?
Yes — Aygestin contains Norethindrone as its active ingredient. Talking about "Aygestin" in clinical terms is the same as talking about Norethindrone at the dose strengths 5mg. The differences from the authorised generic are brand, manufacturer (Various generics), excipients, tablet appearance and price — not the active molecule itself.
When Aygestin is used
에이제스틴은 자궁내막증 관련 통증, 호르몬 불균형으로 인한 비정상 자궁출혈, 이차성 무월경에 승인되어 있습니다. 현행 부인과 가이드라인에 따르면 고용량 노르에틴드론은 복합 호르몬 피임제 및 기타 프로게스틴과 함께 자궁내막증 통증에 대한 일차 약물 치료 옵션 중 하나입니다. 기저 프로게스틴 활성에도 불구하고 이 용량에서는 피임제가 아니며, 처방정보에는 에이제스틴 단독으로는 피임이 보장되지 않는다고 명시되어 있습니다.
Mechanisms compared
Because they share the same active ingredient, the mechanism is identical: 노르에틴드론은 프로게스테론 수용체에 결합하여 프로게스틴 효과를 나타냅니다: 자궁경부 점액 비후, LH 분비 급증 억제, 자궁내막 박화, 자궁내막증의 자궁내막 이식편 활성 감소.
Brand or generic — which to choose?
For most patients, authorised generics of Norethindrone are clinically equivalent substitutes for Aygestin and typically cost substantially less. The practical differences are manufacturer, excipients (rarely matters except in specific sensitivities), tablet appearance and price. The brand is preferred by some patients for personal reasons or insurance coverage; the generic is the default when cost matters.
자주 묻는 질문
Is Aygestin the same as Norethindrone? ▾
Clinically yes — Aygestin is the brand and Norethindrone is its active ingredient. At equivalent doses (5mg) they produce the same effect. The difference is brand, manufacturer (Various generics) and price.
Is generic Norethindrone as effective as Aygestin? ▾
Yes. Authorised generics of Norethindrone must demonstrate bioequivalence to the brand. The active substance is the same; average effect is the same. Price is usually substantially lower.
Why does Aygestin cost more than generic Norethindrone? ▾
The price difference reflects originator development costs, brand recognition and competition among generic manufacturers. The molecule is identical; the cost is not.
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